﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Security;
using Aga.GestionDeArchivos.Services;

namespace Aga.GestionDeArchivos.Web.Models
{


    //#region Services
    //// The FormsAuthentication type is sealed and contains static members, so it is difficult to
    //// unit test code that calls its members. The interface and helper class below demonstrate
    //// how to create an abstract wrapper around such a type in order to make the AccountController
    //// code unit testable.

    //public interface IMembershipService
    //{
    //    int MinPasswordLength { get; }

    //    bool ValidateUser(string userName, string password);
    //    MembershipCreateStatus CreateUser(string userName, string password, string email);
    //    bool ChangePassword(string userName, string oldPassword, string newPassword);
    //}

    //public class AccountMembershipService : IMembershipService
    //{
    //    private readonly MembershipProvider _provider;

    //    public AccountMembershipService()
    //        : this(null)
    //    {
    //    }

    //    public AccountMembershipService(MembershipProvider provider)
    //    {
    //        _provider = provider ?? Membership.Provider;
    //    }

    //    public int MinPasswordLength
    //    {
    //        get
    //        {
    //            return _provider.MinRequiredPasswordLength;
    //        }
    //    }

    //    public bool ValidateUser(string userName, string password)
    //    {
    //        if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
    //        if (String.IsNullOrEmpty(password)) throw new ArgumentException("Value cannot be null or empty.", "password");

    //        return _provider.ValidateUser(userName, password);
    //    }

    //    public MembershipCreateStatus CreateUser(string userName, string password, string email)
    //    {
    //        if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
    //        if (String.IsNullOrEmpty(password)) throw new ArgumentException("Value cannot be null or empty.", "password");
    //        if (String.IsNullOrEmpty(email)) throw new ArgumentException("Value cannot be null or empty.", "email");

    //        MembershipCreateStatus status;
    //        _provider.CreateUser(userName, password, email, null, null, true, null, out status);
    //        return status;
    //    }

    //    public bool ChangePassword(string userName, string oldPassword, string newPassword)
    //    {
    //        if (String.IsNullOrEmpty(userName)) throw new ArgumentException("Value cannot be null or empty.", "userName");
    //        if (String.IsNullOrEmpty(oldPassword)) throw new ArgumentException("Value cannot be null or empty.", "oldPassword");
    //        if (String.IsNullOrEmpty(newPassword)) throw new ArgumentException("Value cannot be null or empty.", "newPassword");

    //        // The underlying ChangePassword() will throw an exception rather
    //        // than return false in certain failure scenarios.
    //        try
    //        {
    //            MembershipUser currentUser = _provider.GetUser(userName, true /* userIsOnline */);
    //            return currentUser.ChangePassword(oldPassword, newPassword);
    //        }
    //        catch (ArgumentException)
    //        {
    //            return false;
    //        }
    //        catch (MembershipPasswordException)
    //        {
    //            return false;
    //        }
    //    }
    //}


    //#endregion

    //#region Validation

    //public static class AccountValidation
    //{
    //    public static string ErrorCodeToString(MembershipCreateStatus createStatus)
    //    {
    //        // See http://go.microsoft.com/fwlink/?LinkID=177550 for
    //        // a full list of status codes.
    //        switch (createStatus)
    //        {
    //            case MembershipCreateStatus.DuplicateUserName:
    //                return "Username already exists. Please enter a different user name.";

    //            case MembershipCreateStatus.DuplicateEmail:
    //                return "A username for that e-mail address already exists. Please enter a different e-mail address.";

    //            case MembershipCreateStatus.InvalidPassword:
    //                return "The password provided is invalid. Please enter a valid password value.";

    //            case MembershipCreateStatus.InvalidEmail:
    //                return "The e-mail address provided is invalid. Please check the value and try again.";

    //            case MembershipCreateStatus.InvalidAnswer:
    //                return "The password retrieval answer provided is invalid. Please check the value and try again.";

    //            case MembershipCreateStatus.InvalidQuestion:
    //                return "The password retrieval question provided is invalid. Please check the value and try again.";

    //            case MembershipCreateStatus.InvalidUserName:
    //                return "The user name provided is invalid. Please check the value and try again.";

    //            case MembershipCreateStatus.ProviderError:
    //                return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

    //            case MembershipCreateStatus.UserRejected:
    //                return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";

    //            default:
    //                return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
    //        }
    //    }
    //}

    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
    public sealed class ValidatePasswordLengthAttribute : ValidationAttribute, IClientValidatable
    {
        private const string _defaultErrorMessage = "'{0}' must be at least {1} characters long.";
        private readonly int _minCharacters = UserService.MinPasswordLength;

        public ValidatePasswordLengthAttribute()
            : base(_defaultErrorMessage)
        {
        }

        public override string FormatErrorMessage(string name)
        {
            return String.Format(CultureInfo.CurrentCulture, ErrorMessageString,
                name, _minCharacters);
        }

        public override bool IsValid(object value)
        {
            string valueAsString = value as string;
            return (valueAsString != null && valueAsString.Length >= _minCharacters);
        }

        public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
        {
            return new[]{
                new ModelClientValidationStringLengthRule(FormatErrorMessage(metadata.GetDisplayName()), _minCharacters, int.MaxValue)
            };
        }
    }
}
